PT Cahaya Benteng Mas (CBM) is an Indonesian roll-forming manufacturer with origins dating back to 1971 when it was founded by Indra Iswaratioso as an air-conditioning duct sheet distributor. Incorporating as a legal entity in 1981, the company expanded into full-scale industrial manufacturing in 1994 by establishing its main factory in Cikarang, equipped with continuous roll-forming and shearing machinery.
CBM specializes in roll-forming aluminium-zinc alloy coated steel (galvalume) and galvanized steel coils into roof coverings, floor decks, and lightweight truss framing. The company operates a network of manufacturing plants, warehouses, and branch offices in Cikarang, Bandung, Makassar, and Denpasar, distributing nationwide through building material networks and project contractors.
CBM has maintained a strategic partnership spanning over three decades with PT NS BlueScope Indonesia, processing certified raw materials to manufacture products bearing SNI certification (including SNI 8399:2017) and verified TKDN domestic content certification from the Ministry of Industry.